Boiler cleaner



-April 27 1926.

J. H. STOCKHOLDER BOILER CLEANER Filed June '30. 1921 2 Sheets-Sheet 1J1! jzockholder 2 Sheets-$heet 2 AI vV/V///////// 1.1-1. STOCKHOLDER BILER CLEANER Filed June 30. 1921 April 27 1926.

Patented Apr. 27, 1926.

.zrsn stares Pa n-M oetics.

. JOHN H. .STOCKHOIJDER, "OF NEW 'ORDEAN S, "LOUISIAN'IA, ASSEG'NOR .TOAUTOMATIC "JBOILER CISEATNER COMPANY.

BOILER 'CLEANER.

zAp' ilicationifileii aTuneIBO, P921. iSeniaLNo.448L520,

on the bottom of-'a-boilenand provided with notched :edges wherebysediment in the bottom of the boiler --w il l be forced iinto theconduit and discharged from-the boiler.

A further object is to provide a boiler cleaner comprising aconduit-disposed .-on the bottom of the boiler: and movable thereon,thereby not only providing ineans for carrying oi? sediment in theboiler but also providing -1nea-ns--w hcreby during the anove' ment ofthe boiler, such for in-stancea in iaiane boiler, the conduitwil-l moveand prevent solidification of the "sediment zthereln 13,1161 dislodgesaid sediment;

A further object s @to -;provide :a :conduit with a hood adapted to bedisposed over the blow-oil opening, said ihoo'd @being .provlded with a-downwardly extending 'centrally disposed shaft terminating in a-spiderdisposed in the blow oli 'pipeysaid shaitt forn'ii'ng a pivotal-point onwhiohithe con: duit as a whole pivots.

lVith the above and other objects in View the invention residesin thecombination and arrangement of parts as hereinafter set forth, shown inthe drawings, describedand claimed it being understood that changes inthe precise embodiment of the invention may be made within the scope oiwhat is claimed without departing from the spirit of the invention.

In the drawings Figure 1 is a side elevation-oi a conventional form ofboiler, part being broken away to show the boiler cleaner uisposedtherein. i

Figure 2 is a longitudinal sectional View through the lower portion of aboiler showing the boiler cleaner conduit in longitudinal section.

point of discharge.

same'in construction as the sections 91" -tli igure s .is a horizontalsectional view taken 011 ,line r -+3 of Figure "2.

' Figure A iisea aziew inside elevation and partly insection,showingthe-blow .ofi' hood located over .-a centrally disposed blow off p pe.

Figure 5 is a perspective view of .oneoxt theeconduitsections.

Fi ure 6 is a perspecti e View of :a anodified IOIllI-Of blow off ,piipehood used when the blow off zpipe. is located aadj acent the #end of theboiler. i I

z-iFi guner-7 :is a top :plan yiewof-one o'f the skimming elements. 7

Referring to-the drawings, the: numeral i1- designates :a conventionalform or boiler, preferably got the typeused on boats, .howeverit .-is tobe understoodithat the device may be applied to (any type of boiler,Whether marine or stationary. it has been found that-sediment rapidly.accumulates in marinerboi-lers particulanly of the. type :used

ou tu 'i'boats in the lower Mississippi River,

In this particular locality it is necessary to .layfuphtug boats.fromutime :to time for removing iniudiithereirom, which entailsconsiderable lossoftimeand money. To oven come this difiioulty a boilercleaning device COlDPFlSlIlgil cond-mtfl disposed on ithe bottom 3 ofthe bo1'ler,.,and through which con- (lltiti-blle mud intheibottom ofthe boiler is forced when the blow off valve scarried by theblowoffpipe"5 is :openedi The boiler conduit 2 isatoraned from-a plurality of:sections2eseini-circularin transverse c-ress sec: tion, said sectionsbeing provided with notchesb vin their edges, which notches when the(IQHCiuiit-BdlSiit whole -disposed on the bottom :orf @the boiler tor-1napertures through which the sediment and inud'in the bottom of theboiler will be forced by the pressure within the boiler and forcedthrough said conduit to the chamber 7 of the blow off pipe hood 8, and,thence through the blow off pipe 5 to any suitable The conduit sections2* overlap each other and are detachably connected together by means ofbolts 10, said bolts allowing thesections to be easily and quicklyassembled or disassembled as de sired. The blow off pipe hood 8 isprovided with "extensions 8, to which extensions the adjacent conduitsections 2*" and 2" may be attached, sections 2 being substantially thewith the exception that they are provided with closed ends 2, which endsmay be provided with notches 6 through which mud and sediment may beforced by the pressure within the boiler. A conduit section 2 simi larin construction to the conduit section 2", is provided, which sectionmay be utilized at the opposite end of the conduit from the end carryingthe hood 8.

Referring to Figure 6 in which a modified form of blow ofl hood 11 isprovided, it will be seen that said hood is substantially the same asthe hood 8 shown in Figures 1 and 2 with the exception that one of theextensions 8 is eliminated, thereby obviating the use of the conduitsection 2*. The hood 11 is particularly adapted for use in connectionwith boilers where the intake end of the blow off pipe 5 is locatedclose to one of the end walls of the boiler, and in a position where thesection 2 could not be used It will be seen that blow off pipe either ofthe hoods 8 and 11 will entirely house intake end of the blow off pipe 5and that sediment forced through the conduit would enter said housingand pass into the blow off pipe.

Pivotally mounted in an aperture 12 in the hood 8 is a verticallydisposed shaft 13, which shaft extends downwardly and terminates in aspider 14, disposed within the upper end 15 of the blow off pipe, saidspider and shaft forming means whereby the hood 8 will be maintained inregistration with the upper end 15 of the blow off pipe and also formingmeans whereby the conduit 2 may move in a horizontal plane incident tomovement of the vessel thereby allowing said conduit to dislodge thesediment or mud at the bottom of the boiler, and at the same timeprevent solidification of said mud or sediment in the bottom of theboiler for the reason that the conduit 2 is constantly n1oving incidentto rocking or pitching of the vessel or to its natural roll from an evenkeel.

Extending upwardly from each conduit section 2 is a vertically disposedpipe 16. The upper ends of the pipes 16 terminate in conically shapedskimming elements 17 having helically shaped passages 18 therein. Theconically shaped skimming elements are disposed below the surface 19 ofthe water 20 within the boiler and form means whereby scum and foamwhich may form on top of the water will be conducted downwardly, thencethrough the conduit 2 and into the blow off pipe 5 when the blow offvalve 4 is opened. It will be seen that the helically shaped passages 18in the skimming elements 17 will set up a centripetal action in thewater above the skimming elements, thereby increasing their skimmingarea. The lower ends of the vertically disposed pipes 16 are detachablyconnected to the conduit sections 2 at 21, thereby allowing the parts tobe easily disassembled for shipping and storage purposes.

From the above it will be seenthat a sediment removing and'waterskimming device is provided for boilers, which device is simple inconstruction and so constructed that the same may be applied to boilerswithout varying the construction thereof.

The invention having been set forth what is claimed as new and useful isThe combination with a boiler, of a cleaning device therefor, saiddevice comprising a horizontally disposed conduit disposed on the bottomof said boiler, said conduit being segmentally shaped in transversecross section, the opposite edges of said conduit being notched, saidconduit being formed from a plurality of sections, the adjacent ends ofsaid sections overlapping'and being secured together, said boiler bottombeing provided with a blow off pipe, a hood forming one section of saidconduit and entirely housing theblow off pipe,-a vertically disposed pinextending through the hood, said pin having its lower end disposedwithin the blow off pipe and a plurality of ribs carried by the end ofthe pin within the blow off pipe.

In testimony whereof I have signed my name to this specification.

JOHN H. STOCKHOLDER.

